Invertible earth scraper



Sept. 9, 1924. 1,508,323

R. J. HELLER INVERTIBLE EARTH SCRAPER Filed Sept 15 1923 314mm oz Patented Sept. 9, 1324,

RAY J. HELLER, O'F LANSING, MICHIGAN;

INVERTI BLE EARTH SGRAPER.

Application filed; September 15, 1923.

T 0 all whom/Z2 may concern:

Be it known that I, RAY J. HELLER, citizen of the United States, residing at Lansing, in the county of Ingham and State of Michigan, have invented certain new and useful Improvements in Invertible Earth Scrapers, of which the following is a specification.

This invention relates to invertible earth scrapers, more particularly, it belongs to that class of scrapers which will work either side up. Not infrequently inv the operation of drag-line scrapers, when they are drawn rearwardly they will turn over. If workin in the water this causes considerable delay and inconvenience before the scraper can be righted and the scraping resumed. By the use of scrapers of the nature herein set forth, it is unnecessary to lose any time if the scraper becomes inverted during the operation.

It is the object of this invention to produce a scraper of the type mentioned, comprising parts of particular construction and arrangement, which is: cheap to manufacture, very strong and in. ordinary service cannot get out of order, and which is very easy and effective to operate.

Drawings accompanying this application illustrate the construction and arrangement of the parts in the preferred form of the invention. Fig. 1 is a side view of all parts assembled, and Fig. 2 is a. vertical section lengthwise between the side walls,

Throughout the drawings and description,

the same letter is used to refer tothe same )art. 1 Considering the drawings, the two side walls A and B are connected at the rear end by the angular or concave closure C. This end plate or plates is connected tov the side walls by angle irons D (Z and E, e, secured, by rivets such as F and f.

At the closed end of the structure there are provided the eye straps, or equivalent, G and g, to which ropes may be attached to draw the scraper rearwardly to return. the same to the point where the scraping begins in order that a second or succeeding operation may be started.

About the middle of the length of the side walls will be noted the intermediate scraper blades H, it. These blades project from the upper and lower edges of the side walls. and they are adjustable, while the rear blades formed. by the equally project- Serial No. 662,856.

ing ends of the closure C are fixed, as this invention is usually constructed. The ad'- justment of the intermediate blades is effected by means of bolts Kand L, and auxiliary bolt holes is and Z. It will; be seen that by removing the bolts K and L from the positions illustrated and turning the blades and placing the bolts through the auxiliary bolt holes, and through the angleirons J- and j which carry the intermediate blades, a different angle maybe given those blades. u

At the front ends of the side walls. will be noted the draught device-s M and N. These devices are secured to the side walls as illustrated, and each is provided with a part which for the purposes'of this description is termed a drawbar member. These members are marked m and 02. They are usually fashioned in the obtuse angular shape shown, and arranged with the apexes of the angles towards the ends of the side walls. The drawbar members are provided with series of notches m and n, the functions of which are to engage the links of the drag chains as hereinafter stated. draught devices are secured to the ends of the side walls as drawn, and the drawbar members are spaced from the same ends. Each draught device is provided with a pair of stop bars 0', P, and Q, R, and it will be noted that these stop bars are located with one end connectedwith a side wall and the other end with a drawbar member adjacent to the notches in. those members. The stop bars may be adjusted adjacent to given notches by means of the bolts S and bolt holes T near the ends of the side walls,

The

and the bolts 8 and bolt holes t by which the stop bars are connected with the drawbar members of the draught devices.

In explaining the operation of this invention, attention is directed to the fact that the end links of the drag chains U and u engage the d-rawbar members M and N,

Also it will be observed that the stop bars they are stopped by the stop bars 0, P, Q and R. Thus, the operation of this invention is the same either side up. It is not necessary to take time to right it after inversion.

Having now described this invention and explained the mode of its operation, what I claim is 1. In an earth scraper, the combination with side walls, of an end portion connecting the said walls, scraper blades secured to the said walls and projecting beyond the side edges of the said walls on the upper and lower sides of the walls, draught devices located at the front ends of the said walls, and links engaging the said devices, the said devices having members in engagement with the said links whereby when the scraper is inverted the links may slip alternatively towards one or the other of the said side edges of the walls.

2. In an earth scraper, the combination with side walls, of an end portion connecting the said walls, the said end portion being concave and having edges projecting beyond the side edges of the walls to form scraper blades, scraper blades secured to the said walls and projecting beyond the said side edges of the walls on the upper and lower sides of the walls, draught devices located at the front ends of the said walls, and links engaging the said devices, the said devices having members in engagementwith the said links whereby when the scraper is inverted the links may slip alternatively towards one or the other of the said side edges of the walls.

3. In an earth scraper, the combination with the side and end walls and scraping blades, of draught devices secured to the front ends of the side walls and comprising drawbar members spaced from the ends of the said side walls, links engaging the said members whereby when the scraper is inverted the links may slip on the said member alternatively towards one or the other of said side edges of the walls.

4. In an earth scraper, the combination with side and end walls and scraper blades, of draught devices secured to the ends of the said side walls and comprising drawbar members spaced from the ends of the side walls, links engaging the [said members whereby when the scraper is inverted the links may slip on said member alternately towards one or the other of the said side edges of the side walls, and means for lim iting the slipping movements of the links.

5. In an earth scraper, the combination with side and end walls and scraper blades, of draught devices secured to the front ends of the side walls and comprising drawbar members spaced from the front ends of the side walls, links engaging the said members whereby when the scraper is inverted the links may slip alternatively towards one or the other of the side edges of the side walls, the said drawbar members having notches to catch the links in different positions, and means for limiting the movements of th links at predetermined notches of the said members.

6. In an earth scraper, the combination with side and end walls and scraper blades, of draught devices secured to the ends of said walls and comprising drawbar members spaced from the ends of the side walls, links engaging the said members whereby when the scraper is inverted the links may slip alternately towards one or the other of the side edges of the side walls, stop bars for limiting the movements of the links, and means for securing the said stop bars to the ends of the said walls and to the draught devices in different positions.

7. In an earth scraper, the combination with side and end walls and scraper blades, of draught devices secured to the front ends of the side walls and comprising drawbar members spaced from the ends of the side walls, the said members being of angular form and arranged with the apexes of the angles towards the ends of the side walls, links engaging the said members whereby when the scraper is inverted the linksmay slip alternately towards one or the other of the edges of the side walls, and means for limiting the slipping movements of the links.

8. In an invertible earth scraper, the combination with a body portion having top and bottom scraping members, of automatically adjustabl draft devices.

9. In an invertible earth scraper, the conr bination with a body portion provided with a V-shaped closed end, the edges of the said V-shaped end projecting beyond the top and bottom of the said body to form scraping blades, and automatically" adjustable draft devices.

In testimony whereof I affix my signature.

RAY J. HELLER. 

